Know Your Environment. Protect Your Health.

Bromochloromethane

Harris County Municipal Utility District 189

Bromochloromethane is a tap water disinfection byproduct; it is also used as an intermediate in chemical manufacturing and as a fire extinguishing agent. Disinfection byproducts in drinking water increase the risk of cancer.

 

15

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018ND20ND
2019ND20ND
2020ND20ND
2021ND10ND
2022ND10ND
20231.03 ppb31ND - 3.10 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromochloromethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2015-06-09113685PND
2015-06-09113686PND
2015-12-08116314PND
2015-12-08116315PND
2018-05-17AE26817ND
2018-05-17AE26821ND
2019-07-08AE73468ND
2019-07-08AE73470ND
2020-06-23AF16542ND
2020-06-23AF16548ND
2021-10-14AF73563ND
2022-04-05AF92017ND
2023-07-20AG496133.10 ppb
2023-10-12AG59736ND
2023-11-02AG62177ND